Description CARL ZEISS CIRRUS HD OCT 4000 Carl Zeiss Cirrus HD OCT 4000 delivers detailed diagnostic and change analysis you can rely on. The small footprint and fast capture speeds of the Cirrus 4000 improve work efficiency while helping you to deliver better care to your patients. The Cirrus 4000 acquires OCT data about 70 times faster (27,000 vs. 400 A-scans per second) and with better resolution (5 μm vs. ~10 μm axial resolution in tissue), compared to first-generation OCT technology. Cirrus acquires whole cubes of OCT image data, composed of hundreds of line scans, in about the same time as Stratus acquires a six-line scan. You can view these data cubes in three planes, or through three dimensions, giving you access to an extensive amount of retinal image data in one scan. FEATURES: FastTrac retinal tracking system Macular Thickness OU AnalysisAdvanced RPE analysis Ganglion Cell Analysis Guided Progression Analysis (GPA) Precision FoveaFinder Macular Thickness and Change Analysis Macular Thickness Normative Data SPECIFICATIONS Technical data Axial resolution: 5 μm (in tissue) Transverse resolution: 15 μm (in tissue) Scan speed: 27,000 A-scans per second A-scan depth: 2.0 mm (in tissue), 1024 points Optical source: superluminescent diode (SLD), 840 nm Fundus Imaging Line scanning ophthalmoscope (LSO) Live during scanning Transverse resolution: 25 μm (in tissue) Optical source: superluminescent diode (SLD), 750 nm Field of view: 36° x 30° Scan Patterns Macular Cube 200 x 200 Combo: 200 horizontal scan lines comprised of 200 A-scans Macular Cube 512 x 128 Combo: 128 horizontal scan lines comprised of 512 A-scans 5 Line Raster: 4096 A-scans per B-Scan (adjustable length, spacing and orientation) HD-OCT Imaging Methodology: Spectral Domain OCT Optical Source: superluminescent diode (SLD), 840 nm Optical Power: < 725 μW at the cornea Scan Speed: 27,000 A-scans per second A-Scan depth: 2.0 mm (in tissue), 1024 points Axial resolution: 5 μm (in tissue) Transverse resolution: 15 μm (in tissue) Fundus Imaging Methodology: Line scanning ophthalmoscope Live Fundus Image: During alignment and during OCT scan Optical Source: Superluminescent diode (SLD), 750 nm Optical Power: < 1.5 mW at the cornea Field of View: 36 degrees W x 30 degrees H Frame rate: >20 Hz Transverse resolution: 25 μm (in tissue) Iris Imaging Methodology: CCD Camera Resolution: 1280 x 1024 Live iris image: During alignment
